DeWalt DWE8410 ユーザーマニュアル

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モデル: DWE8410

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タイプ: ユーザーマニュアル

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DWE8420

DWE8410

DWE8420

DWE8411

DWE8421

Final Page size: A5 (148mm x 210mm)

English (original instructions) 4

简体中文 14

Fig. A-1

Fig. A-2

Fig. B

Fig. C

Fig. D-2

Fig. G-1

Fig. D-1

Fig. G-2

ENGLISH

Work area safety

a ) Keep work area clean and well lit. Cluttered or dark

areas inviteaccidents.

b ) Do not operate power tools in explosive

atmospheres, such as in the presence of flammable

liquids, gases or dust. Power tools create sparks which

may ignite the dust orfumes.

c ) Keep children and bystanders away while operating

a power tool. Distractions can cause you to losecontrol.

Electrical safety

d ) Power tool plugs must match the outlet. Never

modify the plug in any way. Do not use any adapter

plugs with earthed (grounded) power tools.

Unmodified plugs and matching outlets will reduce risk of

electricshock.

e ) Avoid body contact with earthed or grounded

surfaces such as pipes, radiators, ranges and

refrigerators. There is an increased risk of electric shock if

your body is earthed orgrounded.

f ) Do not expose power tools to rain or wet conditions.

Water entering a power tool will increase the risk of

electricshock.

g ) Do not abuse the cord. Never use the cord for

carrying, pulling or unplugging the power tool. Keep

cord away from heat, oil, sharp edges or moving

parts. Damaged or entangled cords increase the risk of

electricshock.

h ) When operating a power tool outdoors, use an

extension cord suitable for outdoor use. Use of a cord

suitable for outdoor use reduces the risk of electricshock.

Definitions: Safety Guidelines

The definitions below describe the level of severity for each

signal word. Please read the manual and pay attention to

thesesymbols.



DANGER: Indicates an imminently hazardous

situation which, if not avoided, will result in death or

seriousinjury.



WARNING: Indicates a potentially hazardous situation

which, if not avoided, could result in death or

seriousinjury.



CAUTION: Indicates a potentially hazardous situation

which, if not avoided, may result in minor or

moderateinjury.

NOTICE: Indicates a practice not related to

personal injury which, if not avoided, may result in

propertydamage.



Denotes risk of electricshock.



Denotes risk offire.

General Power Tool Safety Warnings



WARNING: Read all safety warnings and all

instructions. Failure to follow the warnings and

instructions may result in electric shock, fire and/or

seriousinjury.

SAVE ALL WARNINGS AND INSTRUCTIONS

FOR FUTURE REFERENCE

The term “power tool” in the warnings refers to your mains-

operated (corded) power tool or battery-operated (cordless)

powertool.

English (original instructions)

SMALL ANGLE GRINDERS

DWE8410,DWE8420,DWE8411

Congratulations!

You have chosen a DeWALT tool. Years of experience, thorough product development and innovation make DeWALT one of the

most reliable partners for professional power toolusers.

Technical Data

DWE8410 DWE8420 DWE8411

Voltage V

220-240 220-240 220-240

Power input W 1400

1400

rated speed r/min 10500 9500 10500

Wheel diameter mm 125 150 125

Wheel thickness (max) mm 6.0

6.0

Spindle diameter M14

M14

Spindle length mm 18.5 18.5 18.5

Weight kg 2.5* 2.5* 2.5*

* weight includes side handle and guard

ENGLISH

i ) If operating a power tool in a damp location is

unavoidable, use a residual current device (RCD)

protected supply. Use of an RCD reduces the risk of

electricshock.

Personal safety

j ) Stay alert, watch what you are doing and use

common sense when operating a power tool. Do not

use a power tool while you are tired or under the

influence of drugs, alcohol or medication. A moment

of inattention while operating power tools may result in

serious personalinjury.

k ) Use personal protective equipment. Always wear

eye protection. Protective equipment such as dust mask,

non-skid safety shoes, hard hat, or hearing protection used

for appropriate conditions will reduce personalinjuries.

l ) Prevent unintentional starting. Ensure the switch

is in the off position before connecting to power

source and/or battery pack, picking up or carrying

the tool. Carrying power tools with your finger on the

switch or energising power tools that have the switch on

invitesaccidents.

m ) Remove any adjusting key or wrench before turning

the power tool on. A wrench or a key left attached

to a rotating part of the power tool may result in

personalinjury.

n ) Do not overreach. Keep proper footing and balance

at all times. This enables better control of the power tool

in unexpectedsituations.

o ) Dress properly. Do not wear loose clothing or

jewellery. Keep your hair, clothing and gloves away

from moving parts. Loose clothes, jewellery or long hair

can be caught in movingparts.

p ) If devices are provided for the connection of dust

extraction and collection facilities, ensure these are

connected and properly used. Use of dust collection

can reduce dust-relatedhazards.

Power tool use and care

q ) Do not force the power tool. Use the correct power

tool for your application. The correct power tool

will do the job better and safer at the rate for which it

wasdesigned.

r ) Do not use the power tool if the switch does not turn

it on and off. Any power tool that cannot be controlled

with the switch is dangerous and must berepaired.

s ) Disconnect the plug from the power source and/or

the battery pack from the power tool before making

any adjustments, changing accessories, or storing

power tools. Such preventive safety measures reduce the

risk of starting the power toolaccidentally.

t ) Store idle power tools out of the reach of children

and do not allow persons unfamiliar with the power

tool or these instructions to operate the power tool.

Power tools are dangerous in the hands of untrainedusers.

u ) Maintain power tools. Check for misalignment or

binding of moving parts, breakage of parts and any

other condition that may affect the power tool’s

operation. If damaged, have the power tool repaired

before use. Many accidents are caused by poorly

maintained powertools.

v ) Keep cutting tools sharp and clean. Properly

maintained cutting tools with sharp cutting edges are less

likely to bind and are easier tocontrol.

w ) Use the power tool, accessories and tool bits etc.,

in accordance with these instructions taking into

account the working conditions and the work to be

performed. Use of the power tool for operations different

from those intended could result in a hazardoussituation.

Service

x ) Have your power tool serviced by a qualified repair

person using only identical replacement parts. This

will ensure that the safety of the power tool ismaintained.

ADDITIONAL SPECIFIC SAFETY RULES

Safety Instructions for All Operations

a ) This power tool is intended to function as a

grinder, sander, wire brush or cut-off tool. Read

all safety warnings, instructions, illustrations and

specifications provided with this power tool. Failure

to follow all instructions listed below may result in electric

shock, fire and/or seriousinjury.

b ) Operations such as polishing are not recommended

to be performed with this power tool. Operations for

which the power tool was not designed may create a

hazard and cause personalinjury.

c ) Do not use accessories which are not specifically

designed and recommended by the tool

manufacturer. Just because the accessory can

be attached to your power tool, it does not assure

safeoperation.

d ) The rated speed of the accessory must be at least

equal to the maximum speed marked on the power

tool. Accessories running faster than their rated speed can

break and flyapart.

e ) The outside diameter and the thickness of your

accessory must be within the capacity rating of

your power tool. Incorrectly sized accessories can not be

adequately guarded orcontrolled.

f ) Threaded mounting of accessories must match the

grinder spindle thread. For accessories mounted by

flanges, the arbour hole of the accessory must fit the

locating diameter of the flange. Accessories that do

not match the mounting hardware of the power tool will

run out of balance, vibrate excessively and may cause loss

ofcontrol.

g ) Do not use a damaged accessory. Before each use

inspect the accessory such as abrasive wheel for

chips and cracks, backing pad for cracks, tear or

excess wear, wire brush for loose or cracked wires.

ENGLISH

If power tool or accessory is dropped, inspect for

damage or install an undamaged accessory. After

inspecting and installing an accessory, position

yourself and bystanders away from the plane of

the rotating accessory and run the power tool at

maximum no-load speed for one minute. Damaged

accessories will normally break apart during this testtime.

h ) Wear personal protective equipment. Depending on

application, use face shield, safety goggles or safety

glasses. As appropriate, wear dust mask, hearing

protectors, gloves and workshop apron capable of

stopping small abrasive or workpiece fragments.

The eye protection must be capable of stopping flying

debris generated by various operations. The dust mask or

respirator must be capable of filtrating particles generated

by your operation. Prolonged exposure to high intensity

noise may cause hearingloss.

i ) Keep bystanders a safe distance away from work

area. Anyone entering the work area must wear

personal protective equipment. Fragments of

workpiece or of a broken accessory may fly away and

cause injury beyond immediate area ofoperation.

j ) Hold the power tool by insulated gripping surfaces

only, when performing an operation where the

cutting accessory may contact hidden wiring or its

own cord. Cutting accessory contacting a "live" wire may

make exposed metal parts of the power tool "live" and

could give the operator an electricalshock.

k ) Position the cord clear of the spinning accessory. If

you lose control, the cord may be cut or snagged and your

hand or arm may be pulled into the spinningaccessory.

l ) Never lay the power tool down until the accessory

has come to a complete stop. The spinning accessory

may grab the surface and pull the power tool out of

yourcontrol.

m ) Do not run the power tool while carrying it at your

side. Accidental contact with the spinning accessory

could snag your clothing, pulling the accessory into

yourbody.

n ) Regularly clean the power tool’s air vents. The

motor’s fan will draw the dust inside the housing and

excessive accumulation of powdered metal may cause

electricalhazards.

o ) Do not operate the power tool near flammable

materials. Sparks could ignite thesematerials.

p ) Do not use accessories that require liquid coolants.

Using water or other liquid coolants may result in

electrocution orshock.

q ) Do not use Type 11 (flaring cup) wheels on this tool.

Using inappropriate accessories can result ininjury.

r ) Always use side handle. Tighten the handle securely.

The side handle should always be used to maintain control

of the tool at alltimes.

FURTHER SAFETY INSTRUCTIONS FOR ALL

OPERATIONS

Causes and Operator Prevention

of Kickback

Kickback is a sudden reaction to a pinched or snagged rotating

wheel, backing pad, brush or any other accessory. Pinching or

snagging causes rapid stalling of the rotating accessory which

in turn causes the uncontrolled power tool to be forced in the

direction opposite of the accessory’s rotation at the point of

thebinding.

For example, if an abrasive wheel is snagged or pinched by the

workpiece, the edge of the wheel that is entering into the pinch

point can dig into the surface of the material causing the wheel

to climb out or kick out. The wheel may either jump toward or

away from the operator, depending on direction of the wheel’s

movement at the point of pinching. Abrasive wheels may also

break under theseconditions.

Kickback is the result of tool misuse and/or incorrect operating

procedures or conditions and can be avoided by taking proper

precautions as given below:

a ) Maintain a firm grip on the power tool and position

your body and arm to allow you to resist kickback

forces. Always use auxiliary handle, if provided, for

maximum control over kickback or torque reaction

during start up. The operator can control torque reaction

or kickback forces, if proper precautions aretaken.

b ) Never place your hand near the rotating accessory.

Accessory may kickback over yourhand.

c ) Do not position your body in the area where power

tool will move if kickback occurs. Kickback will propel

the tool in direction opposite to the wheel’s movement at

the point ofsnagging.

d ) Use special care when working corners, sharp edges

etc. Avoid bouncing and snagging the accessory.

Corners, sharp edges or bouncing have a tendency to

snag the rotating accessory and cause loss of control

orkickback.

e ) Do not attach a saw chain woodcarving blade or

toothed saw blade. Such blades create frequent kickback

and loss ofcontrol.

Safety Warnings Specific for Grinding and

Abrasive Cutting-Off Operations

a ) Use only wheel types that are recommended for your

power tool and the specific guard designed for the

selected wheel. Wheels for which the power tool was not

designed cannot be adequately guarded and areunsafe.

b ) The grinding surface of centre depressed wheels

must be mounted below the plane of the guard lip.

An improperly mounted wheel that projects through the

plane of the guard lip cannot be adequatelyprotected.

ENGLISH

c ) The guard must be securely attached to the power

tool and positioned for maximum safety, so the least

amount of wheel is exposed towards the operator.

The guard helps to protect the operator from broken wheel

fragments, accidental contact with wheel and sparks that

could igniteclothing.

d ) Wheels must be used only for recommended

applications. For example: do not grind with the side

of cut-off wheel. Abrasive cut-off wheels are intended

for peripheral grinding, side forces applied to these wheels

may cause them toshatter.

e ) Always use undamaged wheel flanges that are

of correct size and shape for your selected wheel.

Proper wheel flanges support the wheel thus reducing the

possibility of wheel breakage. Flanges for cut-off wheels

may be different from grinding wheelflanges.

f ) Do not use worn down wheels from larger power

tools. Wheel intended for larger power tool is not suitable

for the higher speed of a smaller tool and mayburst.

Additional Safety Warnings Specific for

Abrasive Cutting-Off Operations

a ) Do not "jam" the cut-off wheel or apply excessive

pressure. Do not attempt to make an excessive depth

of cut. Overstressing the wheel increases the loading and

susceptibility to twisting or binding of the wheel in the cut

and the possibility of kickback or wheelbreakage.

b ) Do not position your body in line with and behind

the rotating wheel. When the wheel, at the point of

operations, is moving away from your body, the possible

kickback may propel the spinning wheel and the power

tool directly atyou.

c ) When wheel is binding or when interrupting a cut

for any reason, switch off the power tool and hold

the power tool motionless until the wheel comes to

a complete stop. Never attempt to remove the cut-

off wheel from the cut while the wheel is in motion

otherwise kickback may occur. Investigate and take

corrective action to eliminate the cause of wheelbinding.

d ) Do not restart the cutting operation in the

workpiece. Let the wheel reach full speed and

carefully re-enter the cut. The wheel may bind, walk up

or kickback if the power tool is restarted in theworkpiece.

e ) Support panels or any oversized workpiece to

minimize the risk of wheel pinching and kickback.

Large workpieces tend to sag under their own weight.

Supports must be placed under the workpiece near the line

of cut and near the edge of the workpiece on both sides

of thewheel.

f ) Use extra caution when making a “pocket cut” into

existing walls or other blind areas. The protruding

wheel may cut gas or water pipes, electrical wiring or

objects that can causekickback.

Safety Warnings Specific for Sanding

Operations

a ) Do not use excessively oversized sanding disc

paper. Follow manufacturer’s recommendations,

when selecting sanding paper. Larger sanding paper

extending beyond the sanding pad presents a laceration

hazard and may cause snagging, tearing of the disc

orkickback.

Safety Warnings Specific for Wire Brushing

Operations

a ) Be aware that wire bristles are thrown by the brush

even during ordinary operation. Do not overstress

the wires by applying excessive load to the brush.

The wire bristles can easily penetrate llight clothing and/

orskin.

b ) If the use of a guard is recommended for wire

brushing, do not allow any interference of the

wire wheel or brush with the guard. Wire wheel

or brush may expand in diameter due to work and

centrifugalforces.

Additional Safety Rules for Grinders

• Threaded mounting of accessories must match the grinder

spindle thread. For accessories mounted by flanges, the arbor

hole of the accessory must fit the locating diameter of the

flange. Accessories that do not match the mounting hardware

of the power tool will run out of balance, vibrate excessively

and may cause loss ofcontrol.

• The grinding surface of the centre depressed wheels must

be mounted below the plane of the guard lip. An improperly

mounted wheel that projects through the plane of the guard

lip cannot be adequatelyprotected.



WARNING: We recommend the use of a residual current

device with a residual current rating of 30mA or less.

Residual Risks

In spite of the application of the relevant safety regulations

and the implementation of safety devices, certain residual risks

cannot be avoided. These are:

• Impairment ofhearing.

• Risk of personal injury due to flyingparticles.

• Risk of burns due to accessories becoming hot

duringoperation.

• Risk of personal injury due to prolongeduse.

• Risk of dust from hazardoussubstances.

Electrical Safety

The electric motor has been designed for one voltage only.

Always check that the power supply corresponds to the voltage

on the rating plate.

Your DeWALT tool is double insulated in accordance

with IEC60745; therefore no earth wire is required.

ENGLISH

If the supply cord is damaged, it must be replaced by a

specially prepared cord available through the DeWALT

serviceorganisation.

Using an Extension Cable

An extension cord should not be used unless absolutely

necessary. Use an approved extension cable suitable for

the power input of your charger (see Technical Data). The

minimum conductor size is 1.5 mm

; the maximum length

is30m.

When using a cable reel, always unwind the cablecompletely.

Package Contents

The package contains:

1 Angle grinder

1 Guard

1 Side handle

1 Flange set

1 Hex key

1 Instruction manual

• Check for damage to the tool, parts or accessories which may

have occurred duringtransport.

• Take the time to thoroughly read and understand this manual

prior tooperation.

Markings on Tool

The following pictograms are shown on the tool:

Read instruction manual before use.

Wear ear protection.

Wear eye protection.

Date Code Position (Fig. C)

The date code

14

, which also includes the year of manufacture,

is printed into thehousing.

Example:

2016 XX XX

Year of Manufacture

Description (Fig.A,B)



WARNING: Never modify the power tool or any part of it.

Damage or personal injury couldresult.

Spindle lock button

Spindle

Side handle

Backing flange

Clamp nut

Guard

Trigger switch(Fig.A-1)(DWE8411)

Slide switch(Fig.A-2)(DWE8410 and DWE8420)

Lock-off lever

10

Dust ejection system

11

Lock on buton

Intended Use

Your heavy-duty small angle grinder has been designed

for professional grinding, sanding, wire brushing and

cuttingapplications.

DO NOT use grinding wheels other than centre depressed

wheels and flapdiscs.

DO NOT use under wet conditions or in the presence of

flammable liquids orgases.

Your heavy-duty angle grinders is a professional power tool.

DO NOT let children come into contact with the tool.

Supervision is required when inexperienced operators use

thistool.

• Young children and the infirm. This appliance is not

intended for use by young children or infirm persons

without supervision.

• This product is not intended for use by persons (including

children) suffering from diminished physical, sensory or

mental abilities; lack of experience, knowledge or skills

unless they are supervised by a person responsible for their

safety. Children should never be left alone with thisproduct.

Dust Ejection System (Fig.A)

The dust ejection system

10

prevents dust pile-up around

the guard and motor inlet, and minimises the amount of dust

entering the motorhousing.

ASSEMBLY AND ADJUSTMENTS



WARNING: To reduce the risk of serious personal

injury, turn tool off and disconnect tool from power

source before making any adjustments or removing/

installing attachments or accessories. Be sure the

trigger switch is in the OFF position. An accidental start-up

can cause injury.

Attaching Side Handle (Fig.B)



WARNING: Before using the tool, check that the handle is

tightenedsecurely.

Screw the side handle

3

tightly into one of the holes on either

side of the gear case. The side handle should always be used to

maintain control of the tool at alltimes.

Mounting Guards

WARNING: To reduce the risk of

serious personal injury, turn tool

off and disconnect tool from power

source before making any adjustments

or removing/installing attachments or

accessories. Before reconnecting the tool,

depress and release the trigger switch to

ensure that the tool is off.

CAUTION: Guards must be used with all

grinding wheels, cutting wheels, sanding flap

discs, wire brushes, and wire wheels. The tool

may be used without a guard only when sanding

ENGLISH

with conventional sanding discs. Refer to Figure

A to see guards provided with the unit. Some

applications may require purchasing the correct

guard from your local dealer or authorized service

centre.

Mounting and Removing the Guard (ﬁg.

WARNING: To reduce the risk of

serious personal injury, turn tool

off and disconnect tool from power

source before making any adjustments

or removing/installing attachments or

accessories. Before reconnecting the tool,

depress and release the trigger switch to

ensure that the tool is off.

MOUNTING CLOSED (TYPE 1) OR STANDARD (TYPE 27)

GUARD

CAUTION: Turn off and unplug the tool

before making anyadjustments or removing

or installing attachments or acces-sories.

Before reconnecting the tool, turn the

switch on and off to ensure that the tool is

off.

Hubbed wheels install directly on the M14 spindle.

Thread of accessory must match thread of spindle.

1. Loosen screw, until the guard lug (13) can rotate

freely in the groove (12) on the gear case hub.

2. Rotate guard (6) into desired working position.

The guard body should be positioned between

the spindle and the operator toprovide maximum

operator protection.

3. Tighten the screw(9) to secure the guard on the

gear case cover. (Fasten torque no less than 2.5

N-M). You should be unable to rotate the guard

by hand. Do not operate grinder with a loose

guard.

4. To remove the guard, loosen screw and pull up on

the guard.

TO REMOVE THE GUARD

1. Loosen the screw holding the cinch collar around

the neck of the spindle.

2. Lift up on the guard.

WARNING: Never use the tool without the

guard in place.

Flanges and Wheels

Mounting Non-Hubbed Wheels (Fig. D-1)



WARNING: Failure to properly seat the flange/ clamp nut/

wheel could result in serious injury (or damage to the tool

or wheel).



CAUTION: Included flanges must be used with depressed

centre Type 27 and Type 42 grinding wheels and Type41

cutting wheels. See the Accessories Chart for more

information.



WARNING: A closed, two-sided cutting wheel guard is

re quired when using cutting wheels.



WARNING: Use of a damaged flange or guard or fail ure

to use proper flange and guard can re sult in injury due to

wheel breakage and wheel contact. See the Accessories

Chart for more information.

1. Place the tool on a table, guard up.

2. Install the unthreaded backing flange

4

on spindle

2

with

the raised centre (pilot) facing the wheel.

3. Place wheel

16

against the backing flange, centreing the

wheel on the raised centre (pilot) of the backing flange.

4. While depressing the spindle lock button and with the

hex depressions facing away from the wheel, thread the

clampnut

5

on spindle so that the lugs engage the two

slots in the spindle.

5. While depressing the spindle lock button, tighten the

locking flange with a wrench

20

6. To remove the wheel, depress the spindle lock button and

loosen the threaded locking flange with a wrench.

Mounting Sanding Backing Pads (Fig.D-2)

NOTE: Use of a guard with sanding discs that use backing pads,

often called fiber resin discs, is not required. Since a guard is

not required for these accessories, the guard may or may not fit

correctly if used.



WARNING: Failure to properly seat the flange/ clamp nut/

wheel could result in serious injury (or damage to the tool

or wheel).



WARNING: Proper guard must be reinstalled for grinding

wheel, cutting wheel, sanding flap disc, wire brush or

wire wheel applications after sanding applications are

complete.

1. Place or appropriately thread backing pad

17

thespindle.

2. Place the sanding disc

18

on the backing pad

17

3. While depressing spindle lock

1

, thread clamp nut

19

spindle, piloting the raised hub on the clamp nut into the

centre of san ding disc and backingpad.

4. Tighten the clamp nut by hand. Then depress the spindle

lock button while turning the sanding disc until the sanding

disc and clamp nut are snug.

5. To remove the wheel, grasp and turn the backing pad and

sanding pad while depressing the spindle lock button.

ENGLISH

Mounting and Removing Hubbed Wheels

Hubbed wheels install directly on the M14 threaded spindle.

Thread of accessory must match thread of spindle.

1. Remove backing flange by pulling away from tool.

2. Thread the wheel on the spindle

2

by hand.

3. Depress the spindle lock button

1

and use a wrench to

tighten the hub of the wheel.

4. Reverse the above procedure to remove the wheel.

NOTICE: Failure to properly seat the wheel before turning

the tool on may result in damage to the tool or the wheel.

Mounting Wire Cup Brushes and

Wire Wheels



WARNING: Failure to properly seat the flange/ clamp nut/

wheel could result in serious injury (or damage to the tool

or wheel).



CAUTION: To reduce the risk of personal injury,

wear work gloves when handling wire brushes and

wheels. They can become sharp.



CAUTION: To reduce the risk of damage to the tool,

wheel or brush must not touch guard when mounted

or while in use. Undetectable damage could occur to

the accessory, causing wires to fragment from accessory

wheel or cup.

Wire cup brushes or wire wheels install directly on the threaded

spindle without the use of flanges. Use only wire brushes or

wheels provided with a M14 threaded hub. These accessories

are available at extra cost from your local dealer or authorised

service centre.

1. Place the tool on a table, guard up.

2. Thread the wheel on the spindle by hand.

3. Depress spindle lock button

1

and use a wrench on the

hub of the wire wheel or brush to tighten the wheel.

4. To remove the wheel, reverse the above procedure.

NOTICE: To reduce the risk of damage to the tool, properly

seat the wheel hub before turning the tool on.

Prior to Operation

• Install the guard and appropriate disc or wheel. Do not use

excessively worn discs orwheels.

• Be sure the inner and outer flange are mounted correctly.

Follow the instructions given in the Grinding and Cutting

AccessoryChart.

• Make sure the disc or wheel rotates in the direction of the

arrows on the accessory and thetool.

• Do not use a damaged accessory. Before each use inspect

the accessory such as abrasive wheels for chips and cracks,

backing pad for cracks, tear or excess wear, wire brush for

loose or cracked wires. If power tool or accessory is dropped,

inspect for damage or install an undamaged accessory. After

inspecting and installing an accessory, position yourself and

bystanders away from the plane of the rotating accessory

and run the power tool at maximum no-load speed for one

minute. Damaged accessories will normally break apart

during this testtime.

OPERATION

Instructions for Use



WARNING: Always observe the safety instructions and

applicableregulations.



WARNING: To reduce the risk of serious personal

injury, turn tool off and disconnect tool from power

source before making any adjustments or removing/

installing attachments or accessories. Be sure the

trigger switch is in the OFF position. An accidental start-up

can cause injury.



WARNING:

• Ensure all materials to be ground or cut are secured

inplace.

• Secure and support the workpiece. Use clamps or a

vice to hold and support the workpiece to a stable

platform. It is important to clamp and support the

workpiece securely to prevent movement of the

workpiece and loss of control. Movement of the

workpiece or loss of control may create a hazard and

cause personalinjury.

• Support panels or any oversized workpiece

to minimize the risk of wheel pinching and

kickback. Large workpieces tend to sag under their

own weight. Supports must be placed under the

workpiece near the line of cut and near the edge of the

workpiece on both sides of thewheel.

• Always wear regular working gloves while operating

thistool.

• The gear becomes very hot duringuse.

• Apply only a gentle pressure to the tool. Do not exert

side pressure on thedisc.

• Always install the guard and appropriate disc or

wheel. Do not use excessively worn disc or wheel.

• Be sure the inner and outer flange are

mountedcorrectly.

• Make sure the disc or wheel rotates in the direction of

the arrows on the accessory and thetool.

• Avoid overloading. Should the tool become hot, let it

run a few minutes under no load condition to cool the

accessory. Do not touch accessories before they have

cooled. The discs become very hot duringuse.

• Never work with the grinding cup without a suitable

protection guard inplace.

• Do not use the power tool with a cut-offstand.

• Never use blotters together with bonded

abrasiveproducts.

• Be aware, the wheel continues to rotate after the tools

is switchedoff.

Proper Hand Position (Fig.G)



WARNING: To reduce the risk of serious personal injury,

ALWAYS use proper hand position asshown.

ENGLISH



WARNING: To reduce the risk of serious personal

injury, ALWAYS hold securely in anticipation of a

suddenreaction.

Proper hand position requires one hand on the side handle

3

with the other hand on the body of the tool, as shown in

FigureG.

Trigger Switch (Fig.A-1)



CAUTION: Hold the side handle and body of the tool

firmly to maintain control of the tool at start up and

during use and until the wheel or accessory stops rotating.

Make sure the wheel has come to a complete stop be fore

laying the tooldown.

NOTE: To reduce unexpected tool movement, do not switch

the tool on or off while under load conditions. Allow the grinder

to run up to full speed before touching the work surface. Lift the

tool from the surface before turning the tool off. Allow the tool

to stop rotating before putting itdown.

1. To turn the tool on, push the lock-off lever

(

8

)

toward the

back of the tool, then depress the trigger switch

(

7

)

. The tool

will run while the switch isdepressed.

2. Turn the tool off by releasing the triggerswitch.

Lock-On Button(DWE8411 Only)

The lock-on button 

11

offers increased comfort in extended

use applications. To lock the tool on, depress the lock-on

button when the tool is running. The tool will continue to run

after the paddle switch is released. To unlock the tool, depress

and release the paddle switch. This will cause the tool to stop.

Slider Switch (Fig.A-2) (DWE8410 and

DWE8420)



CAUTION: Hold the side handle and body of the tool

firmly to maintain control of the tool at start up and

during use and until the wheel or accessory stops rotating.

Make sure the wheel has come to a complete stop be fore

laying the tooldown.

NOTE: To reduce unexpected tool movement, do not switch

the tool on or off while under load conditions. Allow the grinder

to run up to full speed before touching the work surface. Lift the

tool from the surface before turning the tool off. Allow the tool

to stop rotating before putting itdown.



WARNING: Before connecting the tool to a power supply,

be sure the slider switch is in the off position by pressing

the rear part of the switch and releasing. Ensure the slider

switch is in the off position as described above after any

interruption in power supply to the tool, such as the

activation of a ground fault interrupter, throwing of a

circuit breaker, accidental unplugging, or power failure. If

the slider switch is locked on when the power is connected,

the tool will startunexpectedly.

To start the tool, slide the ON/OFF slider switch

(

7

)

toward

the front of the tool. To stop the tool, release the ON/OFF

sliderswitch.

For continuous operation, slide the switch toward the front of

the tool and press the forward part of the switch inward. To stop

the tool while operating in continuous mode, press the rear part

of the slider switch andrelease.

Spindle Lock (Fig.B)

The spindle lock

1

is provided to prevent the spindle from

rotating when installing or removing wheels. Operate the

spindle lock only when the tool is turned off, unplugged from

the power supply, and has come to a completestop.

NOTICE: To reduce the risk of damage to the tool, do

not engage the spindle lock while the tool is operating.

Damage to the tool will result and attached accessory

may spin off possibly resulting ininjury.

To engage the lock, depress the spindle lock button and rotate

the spindle until you are unable to rotate the spindlefurther.

Surface Grinding, Sanding and Wire

Brushing



CAUTION: Always use the correct guard per the

instructions in this manual.



WARNING: Metal dust build-up. Extensive use of flap

discs in metal applications can result in the increased

potential for electric shock. To reduce this risk, insert an

RCD before use and clean the ventilation slots daily by

blowing dry compressed air into the ventilation slots

inaccordance with the below maintenanceinstructions.

To perform work on a the surface of a workpiece:

1. Allow the tool to reach full speed before touching the tool

to the work surface.

2. Apply minimum pressure to the work surface, allowing

the tool to operate at high speed. Material removal rate is

greatest when the tool operates at high speed.

Angle

3. Maintain an appropriate angle between the tool and work

surface. Refer to the chart according to particularfunction.

Function Angle

Grinding 20˚-30˚

Sanding with Flap Disc 5˚-10˚

Sanding with Backing Pad 5˚-15˚

Wire Brushing 5˚-10˚

4. Maintain contact between the edge of the wheel and the

work surface.

- If grinding, sanding with flap discs or wire brushing

move the tool continuously in a forward and back

motion to avoid creating gouges in the worksurface.

- If sanding with a backing pad, move the tool constantly

in a straight line to prevent burning and swirling of

worksurface.

ENGLISH

NOTE: Allowing the tool to rest on the work surface without

moving will damage the work piece.

5. Remove the tool from work surface before turning tool off.

Allow the tool to stop rotating before laying it down.



CAUTION: Use extra care when working over an edge, as

a sudden sharp movement of grinder may be experienced.

Precautions To Take When Working on a

Painted Workpiece

1. Sanding or wire brushing of lead based paint is NOT

RECOMMENDED due to the difficulty of controlling the

contaminated dust. The greatest danger of lead poisoning is

to children and pregnant women.

2. Since it is difficult to identify whether or not a paint contains

lead without a chemical analysis, we recommend the

following precautions when sanding any paint:

Personal Safety

1. No children or pregnant women should enter the work area

where the paint sanding or wire brushing is being done

until all clean up is completed.

2. A dust mask or respirator should be worn by all persons

entering the work area. The filter should be replaced daily or

whenever the wearer has difficulty breathing.

NOTE: Only those dust masks suitable for working with lead

paint dust and fumes should be used. Ordinary painting

masks do not offer this protection. See your local hardware

dealer for the proper N.I.O.S.H. approved mask.

3. NO EATING, DRINKING or SMOKING should be done in the

work area to prevent ingesting contaminated paint particles.

Workers should wash and clean up BEFORE eating, drinking

or smoking. Articles of food, drink, or smoking should not be

left in the work area where dust would settle on them.

Environmental Safety

1. Paint should be removed in such a manner as to minimize

the amount of dust generated.

2. Areas where paint removal is occurring should be sealed

with plastic sheeting of 4 mils thickness.

3. Sanding should be done in a manner to reduce tracking of

paint dust outside the work area.

Cleaning and Disposal

1. All surfaces in the work area should be vacuumed and

thoroughly cleaned daily for the duration of the sanding

project. Vacuum filter bags should be changedfrequently.

2. Plastic drop cloths should be gathered up and disposed

of along with any dust chips or other removal debris. They

should be placed in sealed refuse receptacles and disposed

of through regular trash pick-up procedures.

During clean up, children and pregnant women should be

kept away from the immediate work area.

3. All toys, washable furniture and utensils used by children

should be washed thoroughly before being used again.

Edge Grinding and Cutting



WARNING: Do not use edge grinding/cutting wheels for

surface grinding applications because these wheels are

not designed for side pressures encountered with surface

grinding. Wheel breakage and injury may result.



CAUTION: Wheels used for edge grinding and cutting

may break or kick back if they bend or twist while the tool

is being used. In all edge grinding/cutting operations, the

open side of the guard must be positioned away from

theoperator.

NOTICE: Edge grinding/cutting with a Type27 wheel

must be limited to shallow cutting and notching—less

than 13mm in depth when the wheel is new. Reduce the

depth of cutting/notching equal to the reduction of the

wheel radius as it wears down. Refer to the Accessories

Chart for more information. Edge grinding/cutting with a

Type 41 wheel requires usage of a Type 1 guard.

1. Allow the tool to reach full speed before touching the tool

to the work surface.

2. Apply minimum pressure to the work surface, allowing

the tool to operate at high speed. Grinding/cutting rate is

greatest when the tool operates at high speed.

3. Position yourself so that the open-underside of the wheel is

facing away from you.

4. Once a cut is begun and a notch is established in the

workpiece, do not change the angle of the cut. Changing

the angle will cause the wheel to bend and may cause

wheel breakage. Edge grinding wheels are not designed to

withstand side pressures caused bybending.

5. Remove the tool from the work surface before turning

the tool off. Allow the tool to stop rotating before laying

itdown.

Metal Applications

When using the tool in metal applications, make sure that a

residual current device (RCD) has been inserted to avoid residual

risks caused by metal swarf.

If the power supply is shut off by the RCD, take the tool to an

authorised D

eWALT repair agent.



WARNING: In extreme working conditions, conductive

dust can accumulate inside the machine housing when

working with metal. This can result in the protective

insulation in the machine becoming degraded with a

potential risk of an electrical shock.

To avoid build-up of metal swarf inside the machine, we

recommend to clear the ventilation slots on a daily basis. Refer

to Maintenance.

Cutting Metal

For cutting with bonded abrasives, always use the

guardtype 1.

When cutting, work with moderate feed, adapted to the

material being cut. Do not exert pressure onto the cutting disc,

tilt or oscillate the machine.

ENGLISH

Do not reduce the speed of running down cutting discs by

applying sideward pressure.

The machine must always work in an upgrinding motion.

Otherwise, the danger exists of it being pushed uncontrolled

out of the cut.

When cutting profiles and square bar, it is best to start at the

smallest cross section.

Rough Grinding

Never use a cutting disc for roughing.

Always use the guard type 27.

The best roughing results are achieved when setting the

machine at an angle of 30° to 40°. Move the machine back and

forth with moderate pressure. In this manner, the workpiece

will not become too hot, does not discolour and no grooves

areformed.

Cutting Stone

The machine shall be used only for dry cutting.

For cutting stone, it is best to use a diamond cutting disc.

Operate the machine only with additional dust protection mask.

Working Advice

Exercise caution when cutting slots in structural walls.

Slots in structural walls are subject to the country-specific

regulations. These regulations are to be observed under all

circumstances.Before beginning work, consult the responsible

structural engineer, architect or the construction supervisor.

MAINTENANCE

Your DeWALT power tool has been designed to operate

over a long period of time with a minimum of maintenance.

Continuous satisfactory operation depends upon proper tool

care and regularcleaning.



WARNING: To reduce the risk of serious personal

injury, turn tool off and disconnect tool from power

source before making any adjustments or removing/

installing attachments or accessories. Be sure the

trigger switch is in the OFF position. An accidental start-up

can cause injury.

Pop-off Brushes

The motor will be automatically shut off indicating that the

carbon brushes are nearly worn out and that the tool needs

servicing. The carbon brushes are not user-serviceable. Take the

tool to an authorised DeWALT repairagent.

Lubrication

Your power tool requires no additionallubrication.

Cleaning



WARNING: Blow dirt and dust out of the main housing

with dry air as often as dirt is seen collecting in and around

the air vents. Wear approved eye protection and approved

dust mask when performing thisprocedure.



WARNING: Never use solvents or other harsh chemicals

for cleaning the non-metallic parts of the tool. These

chemicals may weaken the materials used in these parts.

Use a cloth dampened only with water and mild soap.

Never let any liquid get inside the tool; never immerse any

part of the tool into aliquid.

Optional Accessories



WARNING: Since accessories, other than those offered

DeWALT, have not been tested with this product, use

of such accessories with this tool could be hazardous.

To reduce the risk of injury, only DeWALT recommended

accessories should be used with thisproduct.

Consult your dealer for further information on the

appropriateaccessories.

Max.

[mm]

Min.

Rotation

[min.

–1

]

Periphical

speed

[m/s]

Threaded

hole length

[mm]

D b d

115 6 22,23 11,500 80 –

125 6 22,23 11,500 80 –

150 6 22,23 9,500 80

115 – – 11,500 80 –

125 – – 11,500 80 –

75 30 M14 11,500 45 20.0

115 12 M14 11,500 80 20.0

125 12 M14 11,500 80 20.0

Protecting the Environment

Separate collection. Products and batteries marked

with this symbol must not be disposed of with normal

household waste.

Products and batteries contain materials that can

be recovered or recycled reducing the demand for raw

materials. Please recycle electrical products and batteries

according to local provisions. Further information is available at

www.2helpU.com.

简体中文

下列所有警告中的“电动工具”一词是指电源驱动

（有线）电动工具，或者电池驱动（无线）电动工

具。

a) 工作场地的安全

1) 保持工作场地清洁和明亮。混乱和黑暗的场地会

引发事故。

2) 不要在易爆环境，如有易燃液体、气体或粉尘的

环境下操作电动工具。电动工具产生的火花会点

燃粉尘或气体。

3) 让儿童和旁观者离开后操作电动工具。注意力不

集中会使你失去对工具的控制。

)b 电气安全

1) 电动工具插头必须与插座相配。绝不能以任何方

式改装插头。需接地的电动工具不能使用任何转

换插头。未经改装的插头和相配的插座将减少电

击危险。

2) 避免人体接触接地表面，如管道、散热片和冰

箱。如果你身体接地会增加电击危险。

定义：安全指南

下列定义描述了各标志术语的严重程度。请仔细阅读

本手册，并注意这些标志。

危险：表示存在紧急危险情况，如果不加以避

免，将导致死亡或严重伤害。

警告：表示存在潜在的危险情况，如果不加以

避免，可能导致死亡或严重伤害。

警示：表示存在潜在危险情况，如果不加以避

免，可能导致轻度或中度伤害。

注意：表示存在不涉及人身伤害的情况，如果

不加以避免，可能导致财产损失。

表示存在触电风险。

表示存在火灾风险。

电动工具通用安全警告

警告！请仔细阅读所有安全警告和说明。

如不遵守以下任何警告和说明，

可能会导致触电、火灾和/或严重伤害。

请妥善保存所有警告和说明，以备将来查阅。

角磨机

DWE8410、DWE8420、、DWE8411 DWE8421

恭喜！

感谢您选购 DEWALT 工具。凭借多年的产品开发和创新经验，DEWALT 已经成为专业电动工具用户最可靠的合作

伙伴之一。

技术参数

DWE8410 DWE8420 DWE8411

电压 V

220V 220V 220V

输入功率瓦 1400

1400

额定速度转/分钟 10500 9500 10500

砂轮直径毫米 125 150 125

砂轮厚度（最大）毫米 6.0

6.0

主轴直径 M14

M14

主轴长度毫米 18.5 18.5 18.5

重量千克 2.5* 2.5* 2.5*

DWE8421

220V

1400

9500

150

6.0

M14

18.5

2.5*

* 重量包括侧手柄和防护罩

RCDRCD

3) /

a )

b )

c )

d )

e )

f )

g )

h )

i )

j )

k )

l )

m )

n )

o )

p )

a )

b )

c )

d )

e )

a )

b )

c )

d )

e )

a )

b )

c )

d )

e )

f )

•



•

简体中文

•

长时间使用引起的人身伤害风险。

•

危害物质粉尘引起的风险。

电气安全

电机只适用一种工作电压。请务必检查电源电压是否

与铭牌上的电压一致。

您的 D

WALT 工具依据 IEC60745 标准设置双重

绝缘，因此无须接地线。

若电源线损坏，必须交由 D

WALT 维修部门采用专门

制备的电线进行更换。

使用延长线

除非绝对必要，否则请勿使用延长线。使用适合您的

充电器输入功率的合格延长线（见

技术参数

）。最小

的导线尺寸为 1.5 平方毫米；最大长度为 30 米。

使用电缆卷筒时，请务必拉出所有的电缆。

包装内的物品

包装内的物品包括：

1 个角磨机

1 个防护罩

1 个侧手柄

1 个法兰套件

1 个六角扳手

1 本说明手册

•

检查工具、部件或附件是否在运输过程中损坏。

•

操作前，请抽空仔细阅读并掌握本手册。

工具上的标记

工具上印有下列图形：

使用前请阅读使用手册。

请佩戴护目装备。

日期码位置（图 C）

日期码印在工具外壳上，其中还包含制造年份。

示例：

2016 XX XX

制造年份

说明（图 A、B）

警告：切勿改装电动工具或其任何部件，否则

可能会导致损坏或人身伤害。

主轴锁按钮

主轴

侧手柄

靠背法兰

螺纹锁定法兰

防护罩

扳机开关（图 A-1）（DWE8411和DWE8421）

滑动开关（图 A-2）（DWE8420 和 DWE8410）

锁止杆

排尘系统

开关锁钮

设计用途

您的重型角磨机设计用于专业磨削和切割。

请勿使用中心凹陷砂轮以外的砂轮和砂轮片。

请勿在潮湿环境中或在有易燃液体或气体的环境中

使用。

您的重型角磨机是专业型电动工具。

请勿让儿童接触本工具。缺乏经验的操作员需要在监

督下使用本工具。

• 儿童和体弱者。在没有他人监督的情况下，儿童

或体弱者不适宜使用本产品。

• 本产品不适合体力、感官或智力不足以及缺乏经

验、知识或技能的人员（包括儿童）使用，除非

一旁有能为他们的安全负责的监督人员。不得在

无人监管的情况下让儿童接触本产品。

排尘系统（图 A）

排尘系统防止灰尘在防护罩和电机入口积聚，最

大程度减少进入电机壳的积尘量。

组装与调整

警告：为降低严重的人身伤害风险，在进行任

何调整或取出/安装附件或配件之前，请关闭工

具电源和断开工具电源连接。请确保触发开关

处于 OFF（关闭）位置。意外启动可能会导致

人身伤害。

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DeWalt DWE8410 ユーザーマニュアル

ブランド: DeWalt

モデル: DWE8410

カテゴリー: パワーツール

タイプ: ユーザーマニュアル

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